Abridgement of: The UFO encyclopedia / Jerome Clark. 2nd ed. Detroit, Mich. : Omnigraphics, 1998 (in 2 v.)
Includes bibliographical references and index
"Jerome Clark's thoroughly researched and objectively written essays invite you to weigh the evidence, examine the photographs and drawings, and ponder the possiblities of UFOs and extraterrestrial visitors. Believers, skeptics and anyone ho is curious about close encounters will agree that no source provides more thorough or balanced coverage than this work."